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Re: Possible bug on highlighting matching

... It is. It doesn t mean that overlapping is not possible at all. The search for another match can either start after the end of the current match (with

Message 1 of 7
, Sep 28, 2008

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Sandro Bosio schrieb:

> Consider the following text:
>
> sample example
>
> The following searches highlight both the "a" :
>
> /^s\zsa\zemple\|ex\zsa\zemple
> /^s\zsa\zemple\| ex\zsa\zemple
> /^s\zsa\zemple\|e ex\zsa\zemple
> /^s\zsa\zemple\|le ex\zsa\zemple
> /^s\zsa\zemple\|mple ex\zsa\zemple
>
> The following do highlight only the first:
>
> /^s\zsa\zemple\|ample ex\zsa\zemple
> /^s\zsa\zemple\|sample ex\zsa\zemple
> /^s\zsa\zemple\|^\p*ex\zsa\zemple
>
> In other words, when the second match overlaps with the first, the
> second one is not highlighted, even if it actually matches. Is this
> correct behaviour?

It is. It doesn't mean that overlapping is not possible at all.

The search for another match can either start after the end of the
current match (with cpo+=c, default) or after the cursor position
(cpo-=c). If a '\ze' matches, the end of match will be there. The
search cannot start at the cursor position or even more to the left of
it. :h cpo-c

sample example

/^s\zsample\|mple ex\zsa\zemple

As a workaround, you can check if a match can be made, without actually
matching:
:h /\@=
:h /\@<=
and so on.

--
Andy

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